Driver interface unit



FIG. 1 is a perspective view of a driver interface unit showing our new design;

FIG. 2 is a front elevation thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a rear elevation thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a left side elevation thereof; and,

FIG. 7 is a right side elevation thereof.

Broken lines shown are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a driver interface unit, as shown and described. 